WO2014148314A1 - アンテナ装置及び電子機器 - Google Patents
アンテナ装置及び電子機器 Download PDFInfo
- Publication number
- WO2014148314A1 WO2014148314A1 PCT/JP2014/056316 JP2014056316W WO2014148314A1 WO 2014148314 A1 WO2014148314 A1 WO 2014148314A1 JP 2014056316 W JP2014056316 W JP 2014056316W WO 2014148314 A1 WO2014148314 A1 WO 2014148314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- antenna coil
- conductor
- coil
- external device
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07771—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Definitions
- the present invention relates to an antenna device that is incorporated in an electronic device and communicates with an external device via an electromagnetic field signal, and an electronic device in which this antenna device is incorporated.
- an antenna module for RFID Radio Frequency Identification
- antenna modules for realizing a non-contact charging function have been actively used.
- Such an antenna module communicates by using inductive coupling with an antenna coil mounted on a transmitter of a power transmission device (hereinafter simply referred to as a reader / writer) of a reader / writer or a non-contact charging system. That is, in this antenna module, a magnetic field from a reader / writer or the like is received by an antenna coil, the energy of the received magnetic field is converted into electric power, an IC that functions as a communication processing unit is driven, and a power receiving device of a non-contact charging system Can charge the battery.
- a reader / writer a power transmission device
- the antenna module needs to receive a certain level or more of magnetic flux from the reader / writer or the like by the antenna coil in order to communicate reliably. Therefore, in the antenna module according to the conventional example, a loop coil is provided in the casing of the mobile phone, and the coil receives a magnetic flux from a reader / writer or the like.
- Patent Document 1 proposes a method of arranging a flexible cable or a flat cable around a built-in battery as a method for improving the characteristics of a loop antenna built in a portable terminal device.
- an induction current is generated in the coil by a change in magnetic flux from a reader / writer or the like that passes through the opening of the coil.
- the loop coil one side of the loop coil in which the current flowing in the conducting wire circulates in one direction, On the opposite side, on the other side of the loop coil in which the current flowing in the coil lead wire circulates in the other direction, the direction of the flowing current is opposite and cancels each other, so that it is not possible to efficiently combine them Also occurs.
- the present invention has been proposed in view of such circumstances, and provides an antenna device capable of realizing good communication characteristics when incorporated in an electronic device, and an electronic device incorporating the antenna device. With the goal.
- the antenna device communicates with an external device via an electromagnetic field signal.
- This antenna device includes an antenna substrate around which an antenna coil that is inductively coupled to an external device, a sheet-like conductor provided on the antenna substrate so that a part of the antenna coil overlaps, and at least a part of the antenna coil. And a magnetic sheet for drawing a magnetic field transmitted from an external device to the antenna coil.
- the antenna coil is closer to the external device than the magnetic sheet, and / or the current flowing in the conductor of the antenna coil is in the reverse direction
- the magnetic sheet is closer to the external device than the antenna coil and the conductor. Further, the conductor overlaps only with the other side of the antenna coil.
- the antenna device is an antenna device that communicates with an external device via an electromagnetic field signal.
- this antenna device one member constituting a casing of an electronic device, an antenna substrate provided on an inner surface of the one member, around which an antenna coil that is inductively coupled with an external device, and a part of the antenna coil overlap.
- a sheet-like conductor provided on the antenna substrate and a magnetic sheet disposed so as to overlap at least part of the antenna coil and drawing a magnetic field transmitted from an external device to the antenna coil.
- the antenna coil is closer to the external device than the magnetic sheet, and / or the current flowing in the conductor of the antenna coil is in the reverse direction
- the magnetic sheet is closer to the external device than the antenna coil and the conductor. Further, the conductor overlaps only with the other side of the antenna coil.
- One member constituting the casing of the electronic device may include a metal part that constitutes a part of the member, and the conductor may overlap with a part of the metal part.
- the electronic device is an electronic device in which an antenna device that communicates with an external device via an electromagnetic field signal is incorporated.
- the antenna device includes an antenna substrate around which an antenna coil that is inductively coupled to an external device, a sheet-like conductor provided on the antenna substrate so that a part of the antenna coil overlaps, and at least a part of the antenna coil. And a magnetic sheet that is arranged so as to overlap and draws a magnetic field transmitted from an external device to the antenna coil.
- the antenna coil is closer to the external device than the magnetic sheet, and / or the current flowing in the conductor of the antenna coil is in the reverse direction
- the magnetic sheet is closer to the external device than the antenna coil and the conductor. Further, the conductor overlaps only with the other side of the antenna coil.
- An electronic device is an electronic device in which an antenna device that communicates with an external device via an electromagnetic field signal is incorporated.
- the antenna device includes one member constituting the housing of the electronic device, an antenna substrate provided on the inner surface of the one member, around which the antenna coil that is inductively coupled to the external device, and a part of the antenna coil overlap.
- a sheet-like conductor provided on the antenna substrate and a magnetic sheet that is disposed so as to overlap at least part of the antenna coil and draws a magnetic field transmitted from an external device to the antenna coil.
- the antenna coil is closer to the external device than the magnetic sheet, and / or the current flowing in the conductor of the antenna coil is in the reverse direction
- the magnetic sheet is closer to the external device than the antenna coil and conductor, and the conductor overlaps only with the other side.
- an antenna device and an electronic apparatus including the antenna device collect magnetic flux at the end of the conductor by superimposing a conductor on a part of the antenna coil and superimposing a magnetic sheet on the antenna coil.
- the collected magnetic flux By introducing the collected magnetic flux into the magnetic sheet, current can be efficiently induced in the antenna coil, and the communication characteristics can be stabilized. Further, since the current flowing through the antenna coil is induced more strongly on one side than on the other side, the communication characteristics are improved.
- FIG. 1 is a perspective view showing a schematic configuration of a contactless communication system in which an antenna device to which the present invention is applied is incorporated.
- 2A to 2C are configuration examples of an antenna device according to an embodiment of the present invention.
- 2A is a perspective view
- FIG. 2B is a cross-sectional view taken along the line AA ′
- FIG. 2C is an enlarged cross-sectional view inside the broken-line circle in FIG. 2B.
- FIG. 3 is a cross-sectional view for explaining the operation principle of the antenna device according to the present invention.
- 4A to 4C are configuration examples of modifications of the antenna device according to one embodiment of the present invention.
- 4A is a perspective view
- FIG. 4B is a cross-sectional view taken along AA ′
- FIG. 4C is an enlarged cross-sectional view taken along a broken-line circle in FIG. 4B.
- 5A to 5C are configuration examples of modifications of the antenna device according to one embodiment of the present invention.
- 5A is a perspective view
- FIG. 5B is a cross-sectional view taken along AA ′
- FIG. 5C is an enlarged cross-sectional view taken along a broken-line circle in FIG. 5B.
- 6A to 6C are configuration examples of other modifications of the antenna device according to one embodiment of the present invention.
- 6A is a perspective view
- FIG. 6B is a cross-sectional view taken along AA ′
- FIG. 6C is an enlarged cross-sectional view taken along a broken-line circle in FIG. 6B.
- FIG. 7A to 7C are other modifications of the antenna device according to the embodiment of the present invention, and are configuration examples in the case where a hole is provided in the metal foil.
- 7A is a perspective view
- FIG. 7B is a cross-sectional view taken along the line AA ′
- FIG. 7C is an enlarged cross-sectional view inside the broken-line circle in FIG. 7B.
- 8A to 8C are other modifications of the antenna device according to the embodiment of the present invention, and are configuration examples in the case where a hole is formed in a notch shape in a metal foil.
- 8A is a perspective view
- FIG. 8B is a cross-sectional view taken along AA ′
- FIG. 8C is an enlarged cross-sectional view taken along a broken-line circle in FIG.
- FIG. 9A is a perspective view
- FIG. 9B is a cross-sectional view taken along AA ′
- FIG. 9C is an enlarged cross-sectional view taken along a broken-line circle in FIG. 9B
- FIG. 10A is a cross-sectional view of a modification in which a metal foil is formed on the reader / writer side of the antenna substrate when the magnetic sheet is disposed only on the other side of the antenna coil
- FIG. 10B shows a cross-sectional view of a modification in which the metal foil is formed on the reader / writer side of the antenna substrate when the magnetic sheet is disposed only on one side of the antenna coil.
- 11A and 11B are diagrams for explaining a state in which the antenna device according to one embodiment of the present invention is mounted on an electronic device (smart phone).
- 11A is a perspective view
- FIG. 11B is a cross-sectional view taken along BB ′.
- 12A and 12B are diagrams for explaining a state where a modification of the antenna device according to the embodiment of the present invention is mounted on an electronic device (smart phone).
- 12A is a perspective view
- FIG. 12B is a cross-sectional view taken along BB ′.
- 13A and 13B are diagrams for explaining a state in which the antenna device according to one embodiment of the present invention is mounted on an electronic device (smart phone) having a metal case.
- FIG. 13A is a perspective view
- FIG. 13B is a cross-sectional view taken along BB ′.
- 14A to 14C are diagrams for explaining a state in which a modification of the antenna device according to one embodiment of the present invention is mounted on an electronic device (tablet personal computer).
- 14A is a perspective view
- FIG. 14B is a cross-sectional view taken along CC ′
- FIG. 14C is an enlarged cross-sectional view within a broken-line circle in FIG. 14B.
- 15A to 15C are diagrams for explaining a state where the antenna device according to one embodiment of the present invention is mounted on an electronic device (tablet personal computer).
- 15A is a perspective view
- FIG. 15B is a cross-sectional view at DD ′
- FIG. 15C is a cross-sectional view at CC ′′.
- FIG. 16A is a perspective view illustrating an antenna device according to a comparative example, and FIG. 16B is a cross-sectional view of the vicinity of the antenna device.
- FIG. 17 is a graph showing changes in the coupling coefficient according to the comparative example.
- FIG. 18A is a perspective view illustrating the antenna device according to the embodiment, and FIG. 18B is a cross-sectional view of the vicinity of the antenna device.
- FIG. 19 is a graph illustrating changes in the coupling coefficient according to the example.
- An antenna device 1 to which the present invention is applied is a device that is incorporated in an electronic device 50 and communicates with an external device via an electromagnetic field signal.
- the antenna device 1 for RFID (Radio Frequency IDentification) as shown in FIG. It is incorporated into the contact communication system 100 and used.
- the electronic device 50 includes mobile terminal devices such as a mobile phone, a smartphone, a notebook personal computer, and a tablet personal computer.
- the non-contact communication system 100 includes an antenna device 1 and a reader / writer 120 that accesses the antenna device 1.
- the antenna device 1 and the reader / writer 120 are arranged to face each other on the xy plane of the three-dimensional orthogonal coordinate system xyz.
- the reader / writer 120 operates as a transmitter that transmits a magnetic field in the positive z-axis direction to the antenna devices 1 that face each other in the xy plane, and specifically, an antenna that transmits a magnetic field toward the antenna device 1. 121 and a control board 122 that communicates with the antenna device 1 that is inductively coupled via the antenna 121.
- a control board 122 that is electrically connected to the antenna 121 is disposed.
- a control circuit made of electronic components such as one or more integrated circuit chips is mounted on the control board 122.
- the control circuit executes various processes based on the data received from the antenna device 1. For example, when transmitting data to the antenna device 1, the control circuit encodes the data, and based on the encoded data, a predetermined frequency (for example, 13.56 MHz, 100 kHz in the case of a contactless charging system) The modulated signal is amplified, and the antenna 121 is driven by the amplified modulated signal.
- a predetermined frequency for example, 13.56 MHz, 100 kHz in the case of a contactless charging system
- the control circuit When reading data from the antenna device 1, the control circuit amplifies the modulation signal of the data received by the antenna 121, demodulates the modulation signal of the amplified data, and decodes the demodulated data.
- a coding system and a modulation system used in a general reader / writer are used. For example, a Manchester coding system or an ASK (Amplitude Shift Keying) modulation system is used.
- the antenna device 1 is incorporated in a housing of an electronic device such as a mobile phone that is arranged to face the reader / writer 120 in the xy plane during communication.
- an antenna device 1 includes an antenna coil 12 that is incorporated in a casing of an electronic device and communicates with an inductively coupled reader / writer 120, and an antenna on which the antenna coil 12 is mounted.
- the antenna device 1 may include a communication processing unit 13 that is driven by electric power generated by the antenna coil 12.
- the metal foil 3 is disposed on a surface of the antenna substrate 11 opposite to the surface facing the reader / writer 120 so as to overlap a part of the antenna coil 12.
- a control board on which a control circuit for controlling the operation of the electronic device is mounted a battery for driving the electronic device, and the like are mounted.
- the magnetic field transmitted from the reader / writer 120 is transmitted in the positive z-axis direction
- the antenna substrate 11 is the length of the antenna substrate 11 along the x-axis direction.
- the sides are arranged, and the short side of the antenna substrate 11 is arranged along the y-axis direction.
- the antenna device 1 includes an antenna substrate 11, an antenna coil 12 formed on one surface of the antenna substrate, and an antenna coil 12 so as to overlap a part of the antenna coil 12. And the metal foil 3 formed on the surface opposite to the surface of the antenna substrate 11 on which is formed.
- the antenna substrate 11 is constituted by, for example, a flexible flexible substrate, and the antenna coil 12 is formed by patterning a flexible conductive wire on one surface of the flexible substrate.
- the antenna coil 12 on the antenna substrate 11 is formed so as to be wound around a central portion 12a so as to wind a conducting wire.
- the antenna substrate 11 and the antenna coil 12 have a rectangular shape that is long in the direction along the x axis and short in the direction along the y axis.
- the antenna coil 12 is wound along this rectangular shape.
- the antenna substrate 11 is disposed so that the surface on which the antenna coil 12 is formed faces the reader / writer 120 on the xy plane during communication.
- the antenna substrate 11 is configured such that, with the central portion 12a of the antenna coil 12 as a boundary, the conductor of the antenna coil 12 has a direction in which the direction of current along the longitudinal direction (x-axis direction) flows in the same direction.
- the side 11a and the other side 11b in which the direction of the current along the longitudinal direction of the conductive wire of the antenna coil 12 is the direction opposite to the direction flowing in the one side 11a is the circuit direction.
- the metal foil 3 is formed on the surface of the antenna substrate 11 opposite to the surface facing the reader / writer 120.
- the metal foil 3 may be formed by patterning on the surface of the antenna substrate 11 opposite to the surface on which the antenna coil 12 is formed, as in the case of forming the conductive wire constituting the antenna coil 12.
- a metal foil such as Al or Cu, which is almost equal to the area of the other side 11b, is attached to the surface of the antenna substrate 11 opposite to the surface on which the antenna coil 12 is formed, using an adhesive or a double-sided tape. Also good.
- the antenna device 1 further includes a rectangular magnetic sheet 20 so as to be superimposed on the antenna coil 12.
- the magnetic sheet 20 is disposed on one surface 11a of the antenna coil on the surface opposite to the surface of the antenna substrate 11 facing the reader / writer 120, and on the other side 11b, the surface of the antenna substrate 11 facing the reader / writer 120. Placed in.
- the antenna device 1 is formed by providing a slit in the central portion 12a of the antenna substrate 11 formed of a flexible substrate along the x-axis direction and inserting a magnetic sheet into the slit.
- the antenna device 1 generates an induced current according to a change in magnetic flux passing through a surface (xy plane) facing the reader / writer 120. If the number of passing magnetic fluxes is large and the strength of the magnetic field is strong, the induced current is also large and the communication characteristics are stabilized. Since the magnetic flux generates an eddy current for the metal and cannot enter the metal, it flows along the metal.
- a control board including a metal such as Cu wiring, a metal chassis of a liquid crystal panel, a metal battery can casing a battery for driving the electronic device, etc. Is mounted as an internal structure, and the magnetic flux from the reader / writer 120 flows along these metal portions. In general, since these internal structures exist in the central part inside the casing of the electronic device, the magnetic flux transmitted from the reader / writer 120 often collects in the peripheral part of the casing.
- the antenna device 1 is arranged avoiding these internal structures, but if arranged at the peripheral edge inside the housing, the magnetic flux shielded by the metal part of the internal structure is gathered, Communication characteristics are improved.
- the magnetic flux from the reader / writer 120 flows in the direction from the central part to the peripheral part inside the housing so as to avoid the metal, and particularly the end of the metal part including the internal structure. Magnetic flux collects at the edge and the edge, increasing the strength of the magnetic field.
- the antenna device 1 more stable communication characteristics can be obtained by arranging the magnetic sheet 20 at the edge of the metal part where the magnetic flux collects and forming a path that guides the magnetic flux to the antenna coil 12. That is, as shown in FIG. 3, the end 3a of the metal foil 3 disposed on the other side 11b of the antenna coil 12 of the antenna device 1 is in the vicinity of the center 12a of the antenna coil 12 where the magnetic flux is gathered (in the drawing).
- the collected magnetic flux F passes through the central portion 12a and flows into the magnetic sheet 20 on the one side 11a. As a result, an induced current flows through the antenna coil 12 on the one side 11a of the antenna device 1, and stable communication characteristics are realized.
- the current flowing through the antenna coil 12 is in the opposite direction on the one side 11a and the other side 11b, in a small antenna coil arranged close to each other, an induced current is generated by a magnetic field generated by each. Acts to cancel. For this reason, the electric power produced
- the magnetic flux directed to one side 11a is increased as compared with the other side 11b, and the current induced on the one side 11a is larger than the current induced on the other side 11b. Therefore, cancellation of the induced current is less likely to occur, and the power generation efficiency of the antenna coil 12 is improved.
- the one side 11a of the antenna coil 12 is set to the peripheral side of the casing and the other side is set.
- the antenna device 1 is preferably arranged so that 11b is on the center side of the housing.
- the magnetic sheet 20 constituting the antenna device 1 does not necessarily have to cover the entire surface of the antenna coil 12, and is collected on the end portion 3 a of the metal foil 3 so as to overlap with a part of the antenna coil 12. It is only necessary to introduce a magnetic flux to induce an electric current in the antenna coil. By reducing the number of the magnetic sheets 20, it is possible to improve weight reduction and thickness reduction.
- the antenna device 1 is mounted in an antenna coil 12 that is incorporated in a housing of an electronic device and communicates with an inductively coupled reader / writer 120, and the antenna coil 12. And the communication processing unit 13 driven by the electric power generated by the antenna coil 12.
- the metal foil 3 is disposed on a surface of the antenna substrate 11 opposite to the surface facing the reader / writer 120 so as to overlap a part of the antenna coil 12.
- the material of the antenna substrate 11, the method of forming the antenna coil, and the material and forming method of the metal foil 3 are the same as in the case of FIG.
- the antenna device 1 further includes a rectangular magnetic sheet 20 so as to overlap the antenna coil 12, but the magnetic sheet 20 is disposed only on the other side 11b of the antenna coil. In this case, the magnetic sheet 20 is disposed on the surface side where the antenna device 1 faces the reader / writer 120. As shown in FIG. 4C, the magnetic flux collected at the end 3 a of the metal foil 3 is introduced from the end 20 a of the magnetic sheet 20 and induces a current in the antenna coil on the other side 11 b of the antenna device 1.
- the antenna device 1 is incorporated in the housing of the electronic device, and the antenna coil 12 that performs communication with the reader / writer 120 that is inductively coupled, and the antenna coil 12 are mounted. And the communication processing unit 13 driven by the electric power generated by the antenna coil 12.
- the metal foil 3 is disposed on a surface of the antenna substrate 11 opposite to the surface facing the reader / writer 120 so as to overlap a part of the antenna coil 12.
- the material of the antenna substrate 11, the forming method of the antenna coil, and the material and forming method of the metal foil are the same as those in FIG.
- the antenna device 1 further includes a rectangular magnetic sheet 20 so as to be superimposed on the antenna coil 12, and the magnetic sheet 20 is disposed only on one side 11a of the antenna coil.
- the magnetic sheet 20 is disposed on the surface opposite to the surface where the antenna device 1 faces the reader / writer 120.
- the magnetic flux collected at the end 3 a of the metal foil 3 is introduced from the end 20 a of the magnetic sheet 20 and induces a current in the antenna coil on the one side 11 a side of the antenna device 1.
- the metal foil 3 is formed so as to cover only the antenna coil 12 on the other side 11 b of the antenna substrate 11.
- the magnetic flux collected at the end 3 a of the metal foil 3 can be introduced into the magnetic sheet 20 by using it.
- the antenna device 1a is arranged so that the metal foil 3 is superimposed on the antenna coil 12 on the other side 11b of the antenna substrate 11.
- the area of the metal foil 3 is set larger than the area superimposed on the antenna coil 12 on the other side 11 b of the antenna substrate 11.
- an area corresponding to the metal foil 3 may be set, and for example, a pattern may be formed with Cu foil on the entire surface of the antenna substrate 11, and superimposed on the antenna coil 12 on the other side 11 b of the antenna substrate 11.
- a metal foil made of Al, Cu, or the like may be attached with an adhesive or the like. It goes without saying that the area and shape of the metal foil 3 can be freely set according to the structure inside the housing.
- the end portion 3a of the metal foil 3 is arranged so as to be near the center portion 12a of the antenna coil 12 as in the case described above.
- the metal foil 3 When expanding the area of the metal foil 3, it is necessary not to interfere with other internal structures. As shown in FIG. 7A and FIG. 7B, for example, when the camera module is arranged at a part of the place where the gold foil 3 is arranged and the lens barrel of the camera module is exposed outside the casing, the metal foil 3 It is necessary to form the hole 3c in the corresponding part. Even in such a case, as shown in FIG. 7C, the end 3a of the metal foil 3 can be disposed in the vicinity of the center 12a of the antenna coil 12, so that the reader / writer 120 transmits to the end 3a. The magnetic flux to be collected can be collected and introduced into the magnetic sheet 20.
- the hole 3c is extended to the edge on the sliding side to form a notch shape.
- the hole 3d may be formed.
- the magnetic sheet 20 may be disposed only on the other side 11b or only on the one side 11a, as in FIGS. 4A to 4C and FIGS. 5A to 5C. Needless to say.
- the metal foil 3 may be formed on any surface of the antenna substrate 11 as long as it overlaps with the other side 11 b of the antenna coil 12.
- the antenna device 1b includes an antenna substrate 11, an antenna coil 12 formed on one surface of the antenna substrate, and a metal formed so as to overlap with a part of the antenna coil 12.
- Foil 3 is provided.
- the antenna device 1b further includes a rectangular magnetic sheet 20 so as to be superimposed on the antenna coil 12.
- the magnetic sheet 20 has a surface facing the reader / writer 120 on one side 11a of the antenna coil. It arrange
- the metal foil 3 is formed between the magnetic sheet 20 and the antenna substrate 11 on the other side of the antenna coil 12. Even in such a case, as shown in FIG. 9C, the magnetic flux gathers in the vicinity of the end portion 3a of the metal foil 3, and the collected magnetic flux can be introduced into the magnetic sheet 20 as in any of the above cases. it can.
- the metal foil 3 is placed between the magnetic sheet 20 and the antenna substrate 11, that is, the reader of the antenna substrate 12. You may make it form in the side of the surface facing the writer 120.
- FIG. 10B even when the magnetic sheet 20 is disposed only on one side 11a of the antenna coil 12, it is disposed on the side of the surface facing the reader / writer 120 of the antenna substrate 12. Also good.
- the position of the antenna substrate 12 on the metal foil 3 is the same as that described above on the reader / writer 120 side regardless of the shape as shown in FIGS. 6A to 6C to 8 to 8C, or any other shape.
- the size and shape of the metal foil can be arbitrarily set as in the case of FIGS. 6A to 6C to 8 to 8C.
- a magnetic flux electromagnetic field
- the strengthened magnetic field is introduced into the magnetic sheet 20 of the antenna device 1.
- a stronger magnetic field is introduced into the antenna device 1 to realize stable communication characteristics.
- the antenna device 1 can be used for a smartphone 130.
- the housing 131 of the smartphone 130 includes one housing member 131a on which the antenna substrate 11 is mounted on the inner surface 130a, and the other housing member 131b on which a main body control circuit including a liquid crystal panel, a CPU, and the like, a battery, and the like are mounted. It consists of.
- the casing 131 is configured by coupling one casing member 131a to a casing member 131b including a main body control circuit and the like so as to cover one casing member 131a.
- the casing members 131a and 131b may be detachably coupled to each other by a known method such as screwing, a combination of an engaging claw and an engaging hole, or may be fixed with an adhesive or the like.
- other functional modules such as a camera module may be mounted in advance on the housing member 131a as a single unit or in combination.
- the user of the smartphone 130 removes the case member 131b from the case member 131b and attaches the case member on which another functional module is mounted. You may be made to do.
- An antenna substrate 11 is mounted in advance on a casing member 131a used as a lid, and the antenna substrate 11 has a plane including the antenna coil 12 facing the reader / writer 120 via the casing member 131a. Be placed.
- the antenna substrate 11 is disposed in the vicinity of the outer peripheral wall of the housing member 131a, and is disposed so that one side 11a of the antenna substrate 11 faces the outer peripheral side of the housing member 131a and the other side faces the center side.
- the other casing member 131b includes a control board 40 that controls the smartphone, a battery 40 arranged on the control board 40, an RF communication module 40c that performs wireless communication with a base station, and a communication module 40c.
- An RF substrate 40b and the like are mounted.
- an additional metal foil 40d may be arranged so as to overlap at least a part of the metal foil 3 of the antenna device.
- the antenna device 1a can be disposed on the inner surface of one housing member 131a of the smartphone 130.
- the antenna device 1a may be set so that the area of the metal foil 3 superimposed on the other side 11b of the antenna coil 12 is larger than the area of the superimposed other side 11b and covers most of the inner surface of the housing member 131a. it can.
- the housing member 131a of the smartphone 130 is a composite of a metal material such as a magnesium alloy and a resin material in order to make up for the design purpose that makes an aesthetic appearance of the electronic device itself and the lack of strength due to the thinning of the housing. Increasingly, it is formed by a combined composite material. That is, the housing member 131a includes a metal cover 132a made of a metal material and a resin portion 132b made of a resin material. As shown in FIGS. 13A and 13B, the antenna device 1 is disposed on the resin portion 132b of the housing member 131a.
- the metal foil 3 of the antenna device 1 forms a metal magnetic flux shield by the substrate 40b, the RF module 40c, the substrate 40a, and the metal cover 132a. Since the magnetic flux transmitted from the reader / writer 120 flows so as to avoid these metals, the magnetic flux collects near the end 3a of the metal foil 3 of the antenna device 1 and the magnetic field is strengthened. Furthermore, in order to make the magnetic flux shielding effect effective, an additional metal foil 40d may be added. Instead of the additional metal foil 40d, the antenna device 1a of the above-described modification 2 may be used.
- a liquid crystal panel 138 is mounted on the front surface of a housing 136.
- the antenna device 1a (Modification 2) is disposed at the peripheral edge of the liquid crystal panel 138.
- the reader / writer 120 transmits a magnetic field from the surface facing the liquid crystal panel 138.
- the liquid crystal panel 138 mounted on the tablet personal computer 135 has a metal chassis 137 disposed on the inner side of the housing 136, so that the metal foil 3 of the antenna device 1a By superimposing the chassis 137, the magnetic flux can be shielded and the magnetic flux can be collected at the end 3 a of the metal foil 3.
- the liquid crystal application device such as the tablet personal computer 135 has an advantage that the peripheral portion of the liquid crystal display portion is the frame portion of the panel, and the magnetic field is more easily collected.
- the metal foil 3 is superimposed on the chassis 137, it can be simply attached with an adhesive or the like, and installation is extremely easy.
- the housing 136 of the tablet personal computer 135 may also be composed of a metal cover 136a made of a metal material and a resin portion 132b made of a resin material.
- the metal cover 136a can also be used for the shield path of the magnetic flux, and the metal foil 3 of the antenna device 1a is arranged so as to overlap the inner surface of the metal cover 136a.
- the metal cover 136a may be arranged at an angle in accordance with the curved surface of the housing 136 so that the magnetic field is directed in the traveling direction.
- the concrete evaluation conditions were as follows. That is, the antenna 121 of the reader / writer 120 is a two-turn coil having an outer shape defined in the xy-axis direction of 66 mm ⁇ 100 mm. Further, the metal plate 4 was made of stainless steel having dimensions defined in the xyz axis direction of 100 mm ⁇ 50 mm ⁇ 0.3 mm.
- the antenna coil 12 of the antenna substrate 11 has a structure in which an outer shape defined in the xy axis direction is 40 mm ⁇ 10 mm, and is a four-turn coil. Furthermore, the distance from the surface of the metal plate 4 to the surface of the antenna coil 12 defined in the z-axis direction was 1 mm.
- a is a distance defined in the y-axis direction from the center 4 b of the metal plate 4 to the end 11 c on the other side 11 b of the antenna substrate 11.
- the width of the metal plate 4 is 50 mm, when the value of a is 25 mm, the end 4a of the metal plate 4 and the end 11c of the other side 11b of the antenna substrate 11 coincide. Further, since the width of the antenna substrate 11 is 10 mm, when the value of a is 35 mm, the end portion 11 d on one side 11 a of the antenna substrate 11 coincides with the end portion 4 a of the metal plate 4.
- the coupling coefficient is the highest, The value decreases with increasing distance from 30 mm. Further, when the value of a is 25 mm or 35 mm, the coupling coefficient exhibits almost the same characteristics.
- the reason why the coupling coefficient is high when the antenna coil 12 is arranged in the vicinity of the end 4 a of the metal plate 4 is that the magnetic flux density is high around the end 4 a of the metal plate 4.
- the metal plate 4 receives a magnetic field transmitted from the reader / writer 120 and generates an eddy current. However, the end 4a has a higher magnetic field strength than the center 4b, and the magnetic force received from the reader / writer 120 is large. This is because efficient energy can be efficiently transmitted to the antenna coil 12 side.
- the coupling coefficient is reduced in both cases.
- the decrease of the coupling coefficient is small with respect to the change in the value of. For example, when the values of a are 22 mm and 38 mm, the coupling coefficient is higher by about 20% when the value of a is 38 mm. Further, when the values of a are 20 mm and 40 mm, the coupling coefficient is higher by about 40% when the value of a is 40 mm.
- Example> In this embodiment, as shown in FIG. 18, the metal plate 4 and the reader / writer 120 are opposed to each other, and the metal foil 3 is attached to the metal plate 4 and the antenna on the opposite side of the metal plate 4 and the antenna substrate 11 from the reader / writer 120. Superposed on the substrate 11. The antenna substrate 11 is adjacent to the end 4 a of the metal plate 4. In this state, the communication characteristics when the relative positional relationship between the metal foil 3 and the antenna substrate 11 was changed were evaluated.
- the metal foil 3 was a copper foil having an outer shape of 50 mm ⁇ 10 mm, and was superimposed so as to cover the entire width of the antenna substrate 11 in the longitudinal direction.
- b is an overlapping distance defined in the y-axis direction from the end portion 11d on one side 11a of the antenna substrate 11 to the end portion 3a on the antenna substrate 11 side of the metal foil 3.
- the width of the antenna substrate 11 is 10 mm
- the metal foil 3 is overlapped over the entire one side 11 a via the central portion 12 a of the antenna coil 12. Further, when the value of b is 0 mm, the metal foil 3 is not superimposed on the antenna substrate 11 at all, and when the value of b is 10 mm, the metal foil 3 is superimposed on the entire antenna substrate 11.
- the antenna device 1 by overlapping the metal foil 3 over the metal plate 4 and the antenna substrate 11, the magnetic field in the overlapping region is rebounded to suppress the inductive coupling, and is generated in the non-overlapping region.
- the current can be transmitted efficiently, and the magnetic flux from the metal plate 4 can be guided to the region of the antenna substrate 11 where the metal foil 3 is not superimposed without leaking, so that efficient inductive coupling is performed. be able to.
- it is possible to improve the degree of freedom of arrangement of the antenna substrate 11 with respect to the metal plate 4 while realizing a coupling coefficient equivalent to that in the antenna device according to the comparative example.
- 1 antenna device 3 metal foil, 3a end, 4 metal plate, 4a end, 4b center, 11 antenna substrate, 11a one side, 11b other side, 12 antenna coil, 12a center, 13 communication processing unit, 14 terminals Part, 20 magnetic sheet, 40 battery, 40a, 40b substrate, 40c RF module, 40d metal foil, 50 electronic device, 120 reader / writer, 121 antenna, 130 smartphone, 131 housing, 131a, 131b housing member, 132a metal cover 132b resin part, 135 tablet PC, 136 housing, 137 LCD panel chassis, 138 LCD panel body
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Near-Field Transmission Systems (AREA)
- Telephone Set Structure (AREA)
- Computer Networks & Wireless Communication (AREA)
Abstract
Description
本発明が適用されたアンテナ装置1は、電子機器50に組み込まれ、外部機器と電磁界信号を介して通信する装置であって、たとえば図1に示すようなRFID(Radio Frequency IDentification)用の非接触通信システム100に組み込まれて使用される。ここで、電子機器50は、たとえば携帯電話、スマートフォン、ノートブックパソコン、タブレットパソコン等の携帯端末機器を含む。
アンテナ装置1は、通信時にリーダライタ120とxy平面において対向するように配置される携帯電話機等の電子機器の筐体の内部に組み込まれる。図1に示すように、アンテナ装置1は、電子機器の筐体の内部に組み込まれ、誘導結合されたリーダライタ120との間で通信を行うアンテナコイル12と、アンテナコイル12が実装されたアンテナ基板11とを備える。アンテナ装置1には、アンテナコイル12により生成される電力により駆動される通信処理部13を備えるようにしてもよい。アンテナ基板11のリーダライタ120と対向する面とは反対側の面に、金属箔3がアンテナコイル12の一部に重畳するように配置される。ここで、携帯電話等の電子機器の筐体内部には、電子機器の動作制御のための制御回路が搭載された制御基板や、電子機器の駆動のためのバッテリ等が搭載されている。これらは、少なくとも一部が金属材料によって構成される電子機器の内部構造物であり、アンテナ装置1に近接し、あるいは重畳して、リーダライタ120に対向するように配置され、これを金属板4として表わすことができる。
アンテナ装置1は、リーダライタ120に対向する面(xy平面)を通過する磁束の変化にしたがって、誘導電流を発生する。通過する磁束本数が多く、磁界の強度が強ければ、誘導される誘導電流も大きく、通信特性が安定する。磁束は、金属に対しては、渦電流を生じさせるので、金属内部に入り込むことができないため、金属に沿って流れることになる。
アンテナ装置1を構成する磁性シート20は、アンテナコイル12の全面すべてを覆うようにする必要は必ずしもなく、アンテナコイル12の一部に重畳させるようにして、金属箔3の端部3aに集められた磁束を導入して、アンテナコイルに電流を誘導することができればよい。磁性シート20を削減することによって、軽量化、薄型化を向上させることが可能になる。
アンテナ装置1では、金属箔3が、アンテナ基板11の他方側11bのアンテナコイル12のみを覆うように形成されている。一般的に、電子機器50の筐体内部には、磁束をシールドする金属製の内部構造物が多数存在するので、これらと金属箔3とを近接させ、あるいは重畳させることによって磁束のシールド経路として利用して、金属箔3の端部3aに集められた磁束を磁性シート20に導入することができればよい。このことは、あくまでも磁束を導くための経路として筐体内部の金属製の内部構造物を利用することに過ぎず、より効率よく経路が構成できるように内部構造物が配置されているとは限らない。そこで、アンテナ装置1を構成する金属箔3を積極的に磁束のシールド経路を形成するように、より広い面積をもたせるようにする。
金属箔3は、アンテナコイル12の他方側11bに重畳していれば、アンテナ基板11のいずれの面に形成されてもよい。
本発明の一実施の形態に係るアンテナ装置1では、携帯電話やスマートフォン等の電子機器の筐体内に存在する金属を含む内部構造物と協働して、リーダライタ等が発信する磁束(磁界)をアンテナ装置1を構成する金属箔3の端部3aに誘導し、集め、強化された磁界をアンテナ装置1の磁性シート20に導入する。これによって、より強い磁界がアンテナ装置1に導入され、安定した通信特性を実現する。
上述の具体例1の追加的な金属箔40dを用いるのに代えて、本発明の一実施の形態の変形例に係るアンテナ装置1aを用いてもよい。
スマートフォン130の筐体部材131aは、電子機器自体で美観を呈するようなデザイン上の目的や筐体の薄型化による強度不足を補うために、マグネシウム合金等の金属材料と樹脂材料とを複合的に組み合わせた複合材料によって形成される場合が増えている。すなわち、筐体部材131aは、金属材料からなるメタルカバー132a、樹脂材料からなる樹脂部分132bとを含んでいる。図13A及び図13Bに示すように、アンテナ装置1は、筐体部材131aの樹脂部分132bに配置される。アンテナ装置1の金属箔3は、基板40b、RFモジュール40c、基板40a及びメタルカバー132aによって金属製の磁束のシールドを形成する。リーダライタ120から発信された磁束は、これらの金属を避けるようにして流れるので、アンテナ装置1の金属箔3の端部3aの付近には磁束が集まり磁界が強まる。さらに、磁束のシールド効果を有効なものとするために、さらなる金属箔40dを追加してもよい。追加的な金属箔40dに代えて、上述変形例2のアンテナ装置1aを用いるようにしてもよい。
電子機器としてのタブレットパソコン135では、筐体136の前面に液晶パネル138が搭載される。そして、アンテナ装置1a(変形例2)は、液晶パネル138の周縁部に配置される。リーダライタ120は、液晶パネル138に対向する面から磁界を発信する。
タブレットパソコン135の筐体136にも、金属材料からなるメタルカバー136aと樹脂材料からなる樹脂部分132bとから構成される場合がある。このような場合には、メタルカバー136aも磁束のシールド経路に用いることができ、アンテナ装置1aの金属箔3をメタルカバー136aの内面に重畳させるように配置する。
比較例に係るアンテナ装置では、図16に示すように、金属板4とリーダライタ120とを対向させて、金属板4とアンテナ基板11との相対的な位置関係を変化させたときの通信特性について評価した。
本実施例では、図18に示すように、金属板4とリーダライタ120とを対向させて、金属板4とアンテナ基板11のリーダライタ120と反対側において、金属箔3を金属板4とアンテナ基板11に重畳させた。アンテナ基板11は、金属板4の端部4aに隣接させた。この状態で、金属箔3とアンテナ基板11との相対的な位置関係を変化させたときの通信特性について評価した。
Claims (18)
- 外部機器と電磁界信号を介して通信するアンテナ装置において、
上記外部機器と誘導結合されるアンテナコイルが周回するアンテナ基板と、
上記アンテナコイルの一部が重畳するように上記アンテナ基板に設けられたシート状の導電体と、
上記アンテナコイルの少なくとも一部に重畳するように配置され、上記アンテナコイルに上記外部機器から発信される磁界を引き込む磁性シートとを備え、
上記アンテナコイルの導線に流れる電流が一方向に周回するアンテナコイルの一方側では、上記アンテナコイルが上記磁性シートよりも上記外部機器の側にあり、及び/又は、 上記アンテナコイルの導線に流れる電流が逆方向に周回するアンテナコイルの他方側では、上記磁性シートが上記アンテナコイル及び導電体よりも上記外部機器の側にあり、
上記導電体は、上記他方側とのみ重畳することを特徴とするアンテナ装置。 - 上記導電体は、上記アンテナコイルの上記一方側の全幅よりも広く、該導電体の面積は、該アンテナコイルに重畳する面積よりも大きいことを特徴とする請求項1記載のアンテナ装置。
- 上記導電体の上記アンテナ基板と重畳しない部分の少なくとも1箇所に孔部が形成されていることを特徴とする請求項2記載のアンテナ装置。
- 上記孔部は、切欠状に形成されていることを特徴とする請求項3記載のアンテナ装置。
- 上記アンテナコイルの他方側は、上記導電体よりも上記外部機器の側にあることを特徴とする請求項1~4いずれか1項記載のアンテナ装置。
- 上記導電体は、上記アンテナコイルよりも上記外部機器の側にあることを特徴とする請求項1~4いずれか1項記載のアンテナ装置。
- 上記アンテナコイル及び上記導電体は、上記アンテナ基板上に形成された導電層であることを特徴とする請求項1~4いずれか1項記載のアンテナ装置。
- 外部機器と電磁界信号を介して通信するアンテナ装置において、
上記電子機器の筐体を構成する一方の部材と、
上記一方の部材の内面に設けられ、上記外部機器と誘導結合されるアンテナコイルが周回するアンテナ基板と、
上記アンテナコイルの一部が重畳するように上記アンテナ基板に設けられたシート状の導電体と、
上記アンテナコイルの少なくとも一部に重畳するように配置され、上記アンテナコイルに外部機器から発信される磁界を引き込む磁性シートとを備え、
上記アンテナコイルの導線に流れる電流が一方向に周回するアンテナコイルの一方側では、上記アンテナコイルが上記磁性シートよりも上記外部機器の側にあり、及び/又は、 上記アンテナコイルの導線に流れる電流が逆方向に周回するアンテナコイルの他方側では、上記磁性シートが上記アンテナコイル及び導電体よりも上記外部機器の側にあり、
上記導電体は、上記他方側とのみ重畳することを特徴とするアンテナ装置。 - 上記導電体は、上記アンテナコイルの上記一方側の全幅よりも広く、該導電体の面積は、該アンテナコイルに重畳する面積よりも大きいことを特徴とする請求項8記載のアンテナ装置。
- 上記導電体の上記アンテナ基板と重畳しない部分の少なくとも1箇所に孔部が形成されていることを特徴とする請求項9記載のアンテナ装置。
- 上記孔部は、切欠状に形成されていることを特徴とする請求項10記載のアンテナ装置。
- 上記アンテナコイルの他方側は、上記導電体よりも上記外部機器の側にあることを特徴とする請求項8~11いずれか1項記載のアンテナ装置。
- 上記導電体は、上記アンテナコイルよりも上記外部機器の側にあることを特徴とする請求項8~11いずれか1項記載のアンテナ装置。
- 上記アンテナコイル及び上記導電体は、上記アンテナ基板上に形成された導電層であることを特徴とする請求項8~11記載のアンテナ装置。
- 上記一方の部材は、その一部を構成する金属部を含み、
上記導電体は、上記金属部の一部に重畳していることを特徴とする請求項8~11いずれか1項記載のアンテナ装置。 - 外部機器と電磁界信号を介して通信するアンテナ装置が組み込まれた電子機器において、
上記アンテナ装置は、
上記外部機器と誘導結合されるアンテナコイルが周回するアンテナ基板と、
上記アンテナコイルの一部が重畳するように上記アンテナ基板に設けられたシート状の導電体と、
上記アンテナコイルの少なくとも一部に重畳するように配置され、上記アンテナコイルに上記外部機器から発信される磁界を引き込む磁性シートとを備え、
上記アンテナコイルの導線に流れる電流が一方向に周回するアンテナコイルの一方側では、上記アンテナコイルが上記磁性シートよりも上記外部機器の側にあり、及び/又は、 上記アンテナコイルの導線に流れる電流が逆方向に周回するアンテナコイルの他方側では、上記磁性シートが上記アンテナコイル及び導電体よりも上記外部機器の側にあり、
上記導電体は、上記他方側とのみ重畳することを特徴とする電子機器。 - 外部機器と電磁界信号を介して通信するアンテナ装置が組み込まれた電子機器において、
上記アンテナ装置は、
上記電子機器の筐体を構成する一方の部材と、
上記一方の部材の内面に設けられ、上記外部機器と誘導結合されるアンテナコイルが周回するアンテナ基板と、
上記アンテナコイルの一部が重畳するように上記アンテナ基板に設けられたシート状の導電体と、
上記アンテナコイルの少なくとも一部に重畳するように配置され、上記アンテナコイルに外部機器から発信される磁界を引き込む磁性シートとを備え、
上記アンテナコイルの導線に流れる電流が一方向に周回するアンテナコイルの一方側では、上記アンテナコイルが上記磁性シートよりも上記外部機器の側にあり、及び/又は、 上記アンテナコイルの導線に流れる電流が逆方向に周回するアンテナコイルの他方側では、上記磁性シートが上記アンテナコイル及び導電体よりも上記外部機器の側にあり、
上記導電体は、上記他方側とのみ重畳することを特徴とする電子機器。 - 上記一方の部材は、その一部を構成する金属部を含み、
上記導電体は、上記金属部の一部に重畳していることを特徴とする請求項17記載の電子機器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/774,233 US9722313B2 (en) | 2013-03-19 | 2014-03-11 | Antenna device and electronic equipment |
CN201480016726.2A CN105103373B (zh) | 2013-03-19 | 2014-03-11 | 天线装置及电子设备 |
KR1020157025489A KR20150119927A (ko) | 2013-03-19 | 2014-03-11 | 안테나 장치 및 전자 기기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013056778A JP6122321B2 (ja) | 2013-03-19 | 2013-03-19 | アンテナ装置及び電子機器 |
JP2013-056778 | 2013-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014148314A1 true WO2014148314A1 (ja) | 2014-09-25 |
Family
ID=51580001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/056316 WO2014148314A1 (ja) | 2013-03-19 | 2014-03-11 | アンテナ装置及び電子機器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9722313B2 (ja) |
JP (1) | JP6122321B2 (ja) |
KR (1) | KR20150119927A (ja) |
CN (1) | CN105103373B (ja) |
TW (1) | TWI645613B (ja) |
WO (1) | WO2014148314A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109216903A (zh) * | 2017-07-07 | 2019-01-15 | 三星电机株式会社 | 天线模块及包括该天线模块的电子装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102593172B1 (ko) * | 2016-10-05 | 2023-10-24 | 삼성전자 주식회사 | 루프 안테나를 갖는 전자 장치 |
JP6192532B2 (ja) * | 2013-12-26 | 2017-09-06 | 株式会社トーキン | アンテナ装置 |
JP6799954B2 (ja) * | 2016-07-11 | 2020-12-16 | デクセリアルズ株式会社 | アンテナ装置 |
TWI801384B (zh) * | 2017-09-01 | 2023-05-11 | 澳大利亞商伊門斯機器人控股有限公司 | 用於行動裝置通訊之天線控制的系統及方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006129003A (ja) * | 2004-10-28 | 2006-05-18 | Tdk Corp | Rfidタグの取付方法、取付構造、アンテナ構造体及びrfidタグ付き装置 |
WO2011077877A1 (ja) * | 2009-12-24 | 2011-06-30 | 株式会社村田製作所 | アンテナ及び携帯端末 |
JP2011139533A (ja) * | 2011-03-15 | 2011-07-14 | Murata Mfg Co Ltd | 電子機器 |
JP2012060626A (ja) * | 2010-08-12 | 2012-03-22 | Murata Mfg Co Ltd | 通信端末装置 |
JP2012065368A (ja) * | 2009-09-25 | 2012-03-29 | Murata Mfg Co Ltd | アンテナ装置及び携帯端末 |
WO2013011865A1 (ja) * | 2011-07-19 | 2013-01-24 | 株式会社村田製作所 | アンテナモジュール、アンテナ装置、rfidタグおよび通信端末装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4472408B2 (ja) | 2004-04-08 | 2010-06-02 | 富士通株式会社 | 携帯端末装置 |
JP2007006123A (ja) * | 2005-06-23 | 2007-01-11 | Kourin Giken:Kk | 携帯機器 |
JP4722774B2 (ja) * | 2006-06-19 | 2011-07-13 | 京セラ株式会社 | 電子機器 |
CN102405556B (zh) | 2009-04-21 | 2013-04-10 | 株式会社村田制作所 | 天线装置及其谐振频率设定方法 |
JP4798317B2 (ja) * | 2009-09-25 | 2011-10-19 | 株式会社村田製作所 | アンテナ装置及び携帯端末 |
JP5135450B2 (ja) * | 2010-03-31 | 2013-02-06 | デクセリアルズ株式会社 | アンテナ装置、通信装置 |
CN105226382B (zh) * | 2010-10-12 | 2019-06-11 | 株式会社村田制作所 | 天线装置及终端装置 |
-
2013
- 2013-03-19 JP JP2013056778A patent/JP6122321B2/ja active Active
-
2014
- 2014-03-11 WO PCT/JP2014/056316 patent/WO2014148314A1/ja active Application Filing
- 2014-03-11 US US14/774,233 patent/US9722313B2/en active Active
- 2014-03-11 KR KR1020157025489A patent/KR20150119927A/ko not_active Application Discontinuation
- 2014-03-11 CN CN201480016726.2A patent/CN105103373B/zh active Active
- 2014-03-14 TW TW103109568A patent/TWI645613B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006129003A (ja) * | 2004-10-28 | 2006-05-18 | Tdk Corp | Rfidタグの取付方法、取付構造、アンテナ構造体及びrfidタグ付き装置 |
JP2012065368A (ja) * | 2009-09-25 | 2012-03-29 | Murata Mfg Co Ltd | アンテナ装置及び携帯端末 |
WO2011077877A1 (ja) * | 2009-12-24 | 2011-06-30 | 株式会社村田製作所 | アンテナ及び携帯端末 |
JP2012060626A (ja) * | 2010-08-12 | 2012-03-22 | Murata Mfg Co Ltd | 通信端末装置 |
JP2011139533A (ja) * | 2011-03-15 | 2011-07-14 | Murata Mfg Co Ltd | 電子機器 |
WO2013011865A1 (ja) * | 2011-07-19 | 2013-01-24 | 株式会社村田製作所 | アンテナモジュール、アンテナ装置、rfidタグおよび通信端末装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109216903A (zh) * | 2017-07-07 | 2019-01-15 | 三星电机株式会社 | 天线模块及包括该天线模块的电子装置 |
US10622705B2 (en) | 2017-07-07 | 2020-04-14 | Wits Co., Ltd. | Antenna module and electronic device including the same |
Also Published As
Publication number | Publication date |
---|---|
KR20150119927A (ko) | 2015-10-26 |
JP2014183468A (ja) | 2014-09-29 |
TWI645613B (zh) | 2018-12-21 |
CN105103373B (zh) | 2018-06-22 |
TW201501408A (zh) | 2015-01-01 |
US9722313B2 (en) | 2017-08-01 |
US20160064822A1 (en) | 2016-03-03 |
CN105103373A (zh) | 2015-11-25 |
JP6122321B2 (ja) | 2017-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6427651B2 (ja) | アンテナ装置 | |
JP2013162195A (ja) | アンテナ装置 | |
WO2014148314A1 (ja) | アンテナ装置及び電子機器 | |
WO2015033561A1 (ja) | アンテナ装置及び電子機器 | |
KR20150070361A (ko) | 전자 기기 및 안테나 장치 | |
WO2015068394A1 (ja) | アンテナ装置及び電子機器 | |
CN107408754B (zh) | 天线装置、及电子设备 | |
CN107534219B (zh) | 天线装置及电子设备 | |
WO2015064762A1 (ja) | アンテナ装置及び電子機器 | |
JP6774701B2 (ja) | アンテナ装置 | |
WO2018012254A1 (ja) | アンテナ装置 | |
WO2017014009A1 (ja) | アンテナ装置 | |
WO2015170612A1 (ja) | アンテナ装置、及び電子機器 | |
WO2016194540A1 (ja) | アンテナ装置、及び電子機器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480016726.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14767710 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 14774233 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20157025489 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14767710 Country of ref document: EP Kind code of ref document: A1 |